Question

tolong² besok dikumpulin​

Answer 1

Sudut Pusat & Sudut Keliling

[tex]\boxed{\sf{Sudut\:pusat=2\times{Sudut\:keliling}}}[/tex]

[tex]\boxed{\sf{Sudut\:keliling=\frac{1}{2} \times{Sudut\:pusat}}}[/tex]

Penyelesaian

1. Sudut pusat = 2 × Sudut keliling

a = 2 × 34°

a = 68°

2. Sudut keliling = 1/2 × Sudut pusat

b = 1/2 × 160°

b = 80°

3. ΔOPQ segitiga sama kaki, jumlah sudut segitiga 180°.

∠POQ + ∠OPQ + ∠OQP = 180°

∠POQ + (2 × ∠OQP) = 180°

∠POQ + (2 × 42°) = 180°

∠POQ = 180° - 84°

∠POQ = 96°

Sudut keliling = 1/2 × Sudut pusat

∠PCQ = 1/2 × ∠POQ

c = 1/2 × 96°

c = 48°

4. Sudut keliling = 1/2 × Sudut pusat

d = 1/2 × 158°

d = 79°

[tex]\boxed{\sf{shf}}[/tex]